SOLUTION: During a clothing sale, the price goes down by half each day an item is not sold. If an item costs $2.50 after 8 days, what was the original price?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: During a clothing sale, the price goes down by half each day an item is not sold. If an item costs $2.50 after 8 days, what was the original price?      Log On


   

Question 1071005: During a clothing sale, the price goes down
by half each day an item is not sold. If an
item costs $2.50 after 8 days, what was the
original price?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +p+ = the original price
+2.5+=+p%2A%28+1%2F2+%29%5E8+
+2.5+=+p%2A%28+1%2F256+%29+
+p+=+640+
The original price was $640